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Message-Id: <20200724103840.18994-4-luka.kovacic@sartura.hr>
Date: Fri, 24 Jul 2020 12:38:39 +0200
From: Luka Kovacic <luka.kovacic@...tura.hr>
To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: jason@...edaemon.net, andrew@...n.ch, gregory.clement@...tlin.com,
sebastian.hesselbarth@...il.com,
Luka Kovacic <luka.kovacic@...tura.hr>,
Luka Perkov <luka.perkov@...tura.hr>,
Jakov Petrina <jakov.petrina@...tura.hr>
Subject: [PATCH 3/4] arm: mvebu: dts: Add CRS328-4C-20S-4S board
MikroTik CRS328-4C-20S-4S board has a switch chip with an integrated
Marvell Prestera 98DX3236 CPU.
This commit includes two board variants, namely the factory
default one and a Bit variant. The Bit variant has a
bigger Macronix flash.
This device tree includes basic Linux support.
Signed-off-by: Luka Kovacic <luka.kovacic@...tura.hr>
Cc: Luka Perkov <luka.perkov@...tura.hr>
Cc: Jakov Petrina <jakov.petrina@...tura.hr>
---
arch/arm/boot/dts/Makefile | 2 +
.../dts/armada-xp-crs328-4c-20s-4s-bit.dts | 43 ++++++++
.../boot/dts/armada-xp-crs328-4c-20s-4s.dts | 17 +++
.../boot/dts/armada-xp-crs328-4c-20s-4s.dtsi | 104 ++++++++++++++++++
4 files changed, 166 insertions(+)
create mode 100644 arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s-bit.dts
create mode 100644 arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dts
create mode 100644 arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dtsi
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f3ac0fb7f244..c30bfa9678b1 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1316,6 +1316,8 @@ dtb-$(CONFIG_MACH_ARMADA_XP) += \
armada-xp-crs305-1g-4s-bit.dtb \
armada-xp-crs326-24g-2s.dtb \
armada-xp-crs326-24g-2s-bit.dtb \
+ armada-xp-crs328-4c-20s-4s.dtb \
+ armada-xp-crs328-4c-20s-4s-bit.dtb \
armada-xp-db.dtb \
armada-xp-db-dxbc2.dtb \
armada-xp-db-xc3-24g4xg.dtb \
diff --git a/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s-bit.dts b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s-bit.dts
new file mode 100644
index 000000000000..e05aee6cdc04
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s-bit.dts
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for MikroTik CRS328-4C-20S-4S+ Bit board
+ *
+ * Copyright (C) 2020 Sartura Ltd.
+ * Author: Luka Kovacic <luka.kovacic@...tura.hr>
+ */
+
+#include "armada-xp-crs328-4c-20s-4s.dtsi"
+
+/ {
+ model = "MikroTik CRS328-4C-20S-4S+ Bit";
+};
+
+&spi0 {
+ status = "okay";
+
+ spi-flash@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "jedec,spi-nor";
+ reg = <0>; /* Chip select 0 */
+ spi-max-frequency = <108000000>;
+ m25p,fast-read;
+
+ partition@...oot {
+ reg = <0x00000000 0x001f0000>;
+ label = "u-boot";
+ };
+ partition@...oot-env {
+ reg = <0x001f0000 0x00010000>;
+ label = "u-boot-env";
+ };
+ partition@...1 {
+ reg = <0x00200000 0x03f00000>;
+ label = "ubi1";
+ };
+ partition@...2 {
+ reg = <0x04100000 0x03f00000>;
+ label = "ubi2";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dts b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dts
new file mode 100644
index 000000000000..665757f6e18e
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dts
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for MikroTik CRS328-4C-20S-4S+ board
+ *
+ * Copyright (C) 2020 Sartura Ltd.
+ * Author: Luka Kovacic <luka.kovacic@...tura.hr>
+ */
+
+#include "armada-xp-crs328-4c-20s-4s.dtsi"
+
+/ {
+ model = "MikroTik CRS328-4C-20S-4S+";
+};
+
+&spi0 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dtsi b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dtsi
new file mode 100644
index 000000000000..c8b1355ce15e
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dtsi
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for CRS328-4C-20S-4S+ board
+ *
+ * Copyright (C) 2016 Allied Telesis Labs
+ * Copyright (C) 2020 Sartura Ltd.
+ *
+ * Based on armada-xp-db.dts
+ *
+ * Note: this Device Tree assumes that the bootloader has remapped the
+ * internal registers to 0xf1000000 (instead of the default
+ * 0xd0000000). The 0xf1000000 is the default used by the recent,
+ * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
+ * boards were delivered with an older version of the bootloader that
+ * left internal registers mapped at 0xd0000000. If you are in this
+ * situation, you should either update your bootloader (preferred
+ * solution) or the below Device Tree should be adjusted.
+ */
+
+/dts-v1/;
+#include "armada-xp-98dx3236.dtsi"
+
+/ {
+ model = "CRS328-4C-20S-4S+";
+ compatible = "mikrotik,crs328-4c-20s-4s", "marvell,armadaxp-98dx3236", "marvell,armada-370-xp";
+
+ chosen {
+ bootargs = "console=ttyS0,115200 earlyprintk";
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0 0x00000000 0 0x20000000>; /* 512 MB */
+ };
+};
+
+&L2 {
+ arm,parity-enable;
+ marvell,ecc-enable;
+};
+
+&devbus_bootcs {
+ status = "okay";
+
+ /* Device Bus parameters are required */
+
+ /* Read parameters */
+ devbus,bus-width = <16>;
+ devbus,turn-off-ps = <60000>;
+ devbus,badr-skew-ps = <0>;
+ devbus,acc-first-ps = <124000>;
+ devbus,acc-next-ps = <248000>;
+ devbus,rd-setup-ps = <0>;
+ devbus,rd-hold-ps = <0>;
+
+ /* Write parameters */
+ devbus,sync-enable = <0>;
+ devbus,wr-high-ps = <60000>;
+ devbus,wr-low-ps = <60000>;
+ devbus,ale-wr-ps = <60000>;
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&i2c0 {
+ clock-frequency = <100000>;
+ status = "okay";
+};
+
+&usb0 {
+ status = "okay";
+};
+
+&spi0 {
+ status = "okay";
+
+ spi-flash@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "jedec,spi-nor";
+ reg = <0>; /* Chip select 0 */
+ spi-max-frequency = <108000000>;
+ m25p,fast-read;
+
+ partition@...oot {
+ reg = <0x00000000 0x001f0000>;
+ label = "u-boot";
+ };
+ partition@...oot-env {
+ reg = <0x001f0000 0x00010000>;
+ label = "u-boot-env";
+ };
+ partition@...1 {
+ reg = <0x00200000 0x00e00000>;
+ label = "ubi1";
+ };
+ };
+};
--
2.26.2
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